The Apple
This has been one of my least favorite episodes, it still is, but this rewatch has forced me to revise my opinion. It also helped me clarify, like with Changeling, why I disliked it so much.
There's 2 themes running through this episode that aren't handled too well, for me anyway.
One is Paradise. Again, that notion that something is paradise is so poorly defined and impossible to pin down, one person's paradise sounds terrible to another. For example, I don't see how jungle green hell = paradise. Humidity, bugs, poisonous plants and bugs, tropical diseases. Yep, that's paradise alright. Forget about Vaal, I'd hate it there. Now maybe those guys are trapped in that can so much any planet with life like that seems nice but I don't think I'd like it, which puts me at odds with this episode, it trying to convince me how wonderful this place is and it not appealing to me at all. Then the "garden of Eden" is mentioned and the title supposedly refers to that story and it's all very silly to me which is especially embodied by the inane closing scene on the Enterprise.
The second theme is sex. Not just Chekov wanting to get something going with Landon, either, but the whole notion of sexual reproduction is really on this writer's mind. Why is it the very first and only observation Kirk, a childless bachelor, makes is "where are the children?" Why does Spock have to even remotely have to discuss sexual reproduction with Landon? I know Dr. McCoy says he's examined them but can't say how old they are and there's that whole conversation about replacements and Vaal would give them instructions. I hate that whole scene when to me it seems most likely that a "replacement" would come out of Vaal, it having grown the replacement internally and sending it out fully grown. These people are made, you could call them clones but I don't think that's the right word because it implies a copy of an original. This is more like how they make people in Brave New World. Vaal manufactures them as needed. I wonder if they even have the necessary organs to have sexual reproduction, they aren't needed to service Vaal.
Overall, I think very poor handling of these concepts really hurts the episode, which otherwise has a lot of good things in it.
The whole crisis with the ship and Scott trying to save it, Kirk's frustration at it's peril and the loss of his people on the ground, Spock's retort to McCoy about the villagers becoming more human because they've learned to kill, I really like Spock and Checkov's distraction, Landon is an actual addition to the party not just a skirt, the plot and setting are actually very interesting minus those parts I mentioned above.
What is Vaal really? Why is it there? Why does it look like a Gorn's cousin? And when it's feeders don't. And is does the entire population of the planet fit in one hut? Are there other settlements at all? Akuta mentions a "Dim Time" before he got his antenna receivers, what was that about? I'd have much rather more of those than making fun of Spock's ears for the xth time.
There's one last thing which is not the episodes fault but I don't like about it which is many other people's version of what happens next. It all goes to the very heart of what this show is about but has been changed by later productions. When this was made, I believe that if thought was given to what was to happen next at all it was surely a prelude to colonizing this planet. Anyone who thinks the Federation just left these people alone really aren't paying attention. This was going to be a new Rigel once everyone gets there, those people were going to be part of the Federation, whether they really wanted to or not. They'd all be sent to school and trained and doing jobs like other Federation citizens do, or maybe in a "reservation" if they insisted not to while the whole rest of the planet was developed. The Federation was searching out planets for development in those days. It's strange how Kirk can tell Cochrane "We're on a thousand planets and spreading out. We cross fantastic distances and everything's alive, Cochrane. Life everywhere. We estimate there are millions of planets with intelligent life. We haven't begun to map them." and then in a later production "How many planets are in this Federation?
Over one hundred and fifty" What!? But that's the attitude shift which has infected so many people's perception of this work. I don't mind the later extrapolation but I prefer this as it's own thing and ignore the spin-offs.